"Kvadra-brain" - is an intellectual game, a quiz that allows you not only to test your knowledge, but also to compete with other players. The game consists of several subject sections: mathematics, computer science, geography. For each Section, composed questions different levels: a simple, average, complex. To answer on test's questions are given about five minutes. Each test you can do an infinite number of times, but when you try to re-pass the test the number of maximum points reduces. The test results formed to the best top-50 results. The competition can take place both online and offline. In the latter case, you must first download test base to your mobile device. Features: - Immediate registration - choose login and colour and go; - Great design; - Lots of tests and sections - try to pass all; - Top 50 - become the best; - Personal Journal - your personal information about all passed tests.